Observation of cyclotron anti-resonance in topological insulator Bi<sub>2</sub>Te<sub>3</sub>.

ORAL

Abstract

We report on the experimental observation of a cyclotron
anti-resonance in a canonical 3D topological insulator
Bi2Te3. Magneto-reflectance response of bulk Bi2Te3 was
studied in 18 Tesla magnetic field, and contrary to other
topological insulators studied before, an anti-resonance is
observed in the spectra. Based on the analysis of the data we
propose that the anti-resonance is the result of different coupling
of charge carriers to left and right circularly polarized light.

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Presenters

  • Sasa Dordevic

    • Univ of Akron

Authors

  • Sasa Dordevic

    • Univ of Akron

  • Hechang Lei

    • Renmin University
    • Brookhaven National Laboratory
    • Brookhaven Natl Lab
    • Brookhaven National Lab

  • Cedomir Petrovic

    • Brookhaven National Laboratory
    • Brookhaven Natl Lab
    • Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA
    • Brookhaven National Lab

  • Jonathan Ludwig

    • NHMFL
    • Natl High Magnetic Field Lab

  • Dmitry Smirnov

    • 1800 East Paul Dirac Drive, Natl High Magnetic Field Lab
    • Natl High Magnetic Field Lab
    • National High Magnetic Field Laboratory
    • NHMFL
    • Condensed Matter Science, National High Magnetic Field Laboratory
    • NHMFL, FSU